Owners Manual

Manufacturer of Quality Air Conditioning and Heating Products • www.islandaire.com • [e-mail] • (800)-886-2759
36
Fan Cycle Control
e ‘Auto’ indoor fan cycle control setting allows the unit
to operate more eciently. is feature conserves energy
by operating the fan only while the compressor or heater
is operating. Constant fan operation in High or Low set-
tings is also available.
Room Freeze Prevention
e indoor freeze protection monitoring system prevents
unoccupied rooms from reaching freezing levels that can
damage plumbing and xtures. is feature is automatic
regardless of mode and does not require any additional
settings. is feature can be turned on or o by adjusting
DIP switch settings on control board.
High Temperature
Compressor Protection
e life of the compressor is extended through a built in
temperature protection. e system will initiate a com-
pressor lockout if the compressor temperature exceeds
154 °F or if the outdoor air temperature falls below 35 °F.
Low Temperature
Compressor Protection
An indoor frost sensor will disable the operation of the
compressor if freezing conditions exist. is protects
the compressor from damage due to airow reduction
or low outdoor air temperature. When the coil tempera-
ture rises to a safe temperature the compressor resumes
normal operation.
System Controls and Management (cont.)
Diagnostic Software
e system management soware performs self-diag-
nostic tests that can alert service personnel to potential
problems. Error codes are stored and displayed on the
digital display and can save service call time during
troubleshooting and maintenance.
See page 43 for a list of Error Codes
Custom Operation
and Continual Room
Temperature Monitoring
e system controls utilize a built-in temperature sensor
for measuring room temperature. When a pre-deter-
mined (user dened) temperature set point is reached,
the on-board controls automatically adjust unit operation
to match.
See page 42 for Temperature Limiting details
System Management Software
e Islandaire PTAC unit is equipped with an on-board control system that contains system management soware and
sensors. Built in safety features protect the unit from the damaging eects of freezing temperatures and power interrup-
tions. Energy management features allow unit performance to be customized and control power consumption. System
monitoring soware helps service personnel quickly correct any problems.
Listed below are some of the important control features and a brief description of their functions.
See Performance Specications section starting on page 44 for full details of all functions.